Article 6 1.

Member States shall ensure that a compulsory procedure for regular consultation between the airport managing body and airport users or the representatives or associations of airport users is established with respect to the operation of the system of airport charges, the level of airport charges and, as appropriate, the quality of service provided. Such consultation shall take place at least once a year, unless agreed otherwise in the latest consultation. Where a multi-annual agreement between the airport managing body and the airport users exists, the consultations shall take place as foreseen in such agreement. Member States shall retain the right to request more frequent consultations.